Not many people get to visit Año Nuevo Island—you need a rubber boat, a strong stomach, and a research permit. But sea lions haul out here in droves, and hundreds of seabirds—including rhinoceros auklets—come to breed on its few wind-swept acres. Today, erosion is threatening the auklets' deep burrows, so researchers are working to restore this critical breeding site for these strange-looking seabirds.